Home / 90,462.18-135,706.63-31,281.96

Finding the Fourth Proportional to 90,462.18, 135,706.63 and 31,281.96

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Solution

The fourth proportional to 90,462.18, 135,706.63 and 31,281.96 is: 46,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,462.18 : 135,706.63 = 31,281.96 : x
  2. Step 2: Convert to fraction form
    90,462.18/135,706.63 = 31,281.96/x
  3. Step 3: Cross multiply
    90,462.18x = 135,706.63 × 31,281.96
  4. Step 4: Simplify right side
    90,462.18x = 4,245,169,371.39
  5. Step 5: Solve for x
    x = 4,245,169,371.39/90,462.18
  6. Step 6: Final answer
    x = 46,927.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.